Microsoft Planner Agent Review: AI Project Manager Stress Test 2026

The wait for the "Project Manager Agent" is over, but is it actually any good?

Microsoft has officially rebranded and released the Planner Agent, and I spent the last week putting it through 5 rigorous tests. From generating full project plans to handling complex delegation and cross-project summaries, I wanted to see if this AI can actually replace a human Project Manager—or if it's just another "Task Secretary."

In this video, I reveal the "75% Trap" that could ruin your project tracking and show you why the new Milestone Charts might leave you reaching for a magnifying glass. What we cover today:

- Creating a project from scratch (The metadata fail)

- Assigning tasks directly to the Agent (The research win!)

- Testing "Impossible" tasks (Can an AI handle procurement?)

- Summarizing multiple Basic Plans in one view

- The Milestone Chart struggle: Why the UI is still a bottleneck The Verdict: The Planner Agent earns a B-.

It’s a powerful assistant for routine documentation, but it lacks the precision needed for high-stakes PMO reporting.

Next Up: I'm heading into Copilot Studio to see if we can build a Custom Agent to fix these gaps. Subscribe so you don't miss the build!

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